The pictures below are of Rumyana Neykova, Bulgarian World Champion Women's Single Sculls 2003.
The source is (with permission) from the FISA DVD of the Milan World Championships 2003.
There are 56 frames, each representing 0.033 seconds.
The stroke rate is 32.5
I also have a later sequence of her from a different angle
click or use arrow keys
Neil Wallace 5th August 2004.